Wire-feeding mechanism.



* c. c. HAMMOND.

WIRE FEEDING MECHANISM.

APPLICATlON EILED FEB.23.1915.

Patented Aug. 10, 1915.

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c. c. HAMMOND.

WIRE FEEDING MECHANISM.

APPLICATION FILED FEB. 23. 1915.

1,149,825. Patented Aug. 10, 1915.

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CLARENCE c. HAMMOND, or .WICI-I'I'TA; KANSAS.

WIRE-FEEDING MECHANISM.

Specification of Letters Patent. i Patentgd Aug; 10, 1915.

Originalapplication filed April 21, 1914, Serial No. 833,383. Divided. and this application'filed February 23,

r i 1915. Serial ml 10,079. i

To all whom it may concern Be it known that I, CLARENCE C; HA M- MOND, a citizen of the United States, reading at WVichita, in the county of Sedgwick and State of Kansas, have invented certain new and useful Improvements in Wire- Feeding Mechanism, of which the following is a specification.

This invention relates to machines for fastening buttons having eye shanks to boots, shoes and other articles, by threading a wire through the shank and forming the same into a staple, the prongs of'which are driven through the article to which the buttons are to be fastened, after which the prongs are clenched to complete the fastenm The present application relates more particularly to the means for feeding the wire to the staple-forming mechanism, it being a division of the application filed April 21, 1914, Serial No. 833383.

The invention has for its object to provide a simple and eflicient wire-feeding mechanism, and to this end it consists of a novel combination and arrangement of parts to be hereinafter described and claimed, reference being had to the accompanying drawings, in which Figure l is a plan view of a fragment of the machine showing the wire feeding means; Fig. 2 is a side elevation thereof; Fig. 3 is a front elevation, and Fig. 4 is a longitudinal section of a wire gripper.

Referring specifically to the drawings, 1 denotes the base or bed piece of the machine, the same being provided with suitable supports having a drive shaft 3, driven from any suitable source of power; or it may be operated by a foot pedal or any other means.

The staples for fastening the buttons to the article are formed of wire which is passed through theeye-shank ofthe buttons, out OK, and then bent into a staple which is driven through the article to which the button is to be secured, and clenched, thus completing the fastening of the button to the article.

The wire-feeding means comprises a grip per 5 carried by a lever 6 fulcrumed at 7 on top of a standard 8 mounted on the base 1. The lever swings in a horizontal plane to carry the gripper toward and from the staple-forming mechanism. Opposite the standard 8 is a standard 9, betweenwhich standards, is mounted,'to swing in a vertical plane on an axis, at right angles to the axis of the lever 6, a rocker 10, the latter havlng trunnions 11 intermediate its ends, which are supported in bearings on the standards. The upper end of the rocker carries a pin 12 which extends into a slot 13 in the lever 6, whereby the motion of the rocker is transmitted to the lever to operate the gripper 5. The rocker 10 is actuated by a roller 14 carried by a vertically swinging arm 15 pivoted at 16 to the standard 9 and connected by a short pitman 17 to a crank 18 fast on the drive shaft 3. The edge of the rocker 10, directly back of the trunnions or pivots 11, has a depression 19 in which the roller works. It will be evident from the foregoing that the travel of the roller back and forth across the pivotal axis of the rocker 10 will swing the same, which motion is transmitted to the lever 6 by the pin 12.

As shown in Fig. 4, the gripper 5 com-' prises a tubular casing 20 which tapers toward its forward end and has an opening 21 thereat large enough to allow the wire to pass through. Slidably mounted in the easing and passingout of the rear end thereof is a plunger 22 having a longitudinal bore 23 through which the wire passes. A spring 24 coiled around the plunger and pressing against an abutment thereon tends to force the plunger toward the forward end of the casing. At this end of the casing the plunger has side openings in which seat balls 25 which project into the bore 23 to grip the wire passing through said bore. When the gripper swings forward to feed the wire the plunger is urged toward the contracted end of the casing, and the latter then forces the balls inward, to grip the wire. When the gripper swings back to take a new hold on the wire, the plunger moves back and the balls are allowed to recede from the wire to release the same.

I claim:

1. In a button-setting machine, a wire gripper, a lever carrying said gripper, a rocker mounted to swing on an aXis transverse of the axis of the lever, a swinging arm having means for pressing against the rocker alternately on opposite sides of its axis, means for operating the arm, and a connection between the rocker and the lever.

2. In a button-setting machine, a wire gripper, a lever carrying said gripper, a

Gopies of this patent may be obtained for arm having means for pressing against the rocker alternately on opposite sides of its axis, means for operating the arm, and a pin extending from one end of the rocker, the lever having a, slot in which the pin works.

In testimony whereof I afiix my signature in presence of two witnesses.

CLARENCE O. HAMMOND.

Witnesses:

LEo O. MORGAN, LESTER GARDNER.

five cents each, by addressing the Commissioner of Patents, Washington, D G. k i 

